{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/marketing-emal-api-email-message-schema.json", "title": "EmailMessage", "description": "The email message configuration", "type": "object", "properties": { "to": { "type": "string", "format": "email", "description": "The recipient's email address", "example": "recipient@example.com" }, "from": { "type": "string", "format": "email", "description": "Override the from address (must be verified)", "example": "noreply@yourcompany.com" }, "sendId": { "type": "string", "description": "A unique ID to prevent duplicate sends", "example": "unique-send-id-123" }, "replyTo": { "type": "array", "description": "Reply-to email addresses", "items": { "type": "string", "format": "email" }, "example": [ "support@yourcompany.com" ] }, "cc": { "type": "array", "description": "CC email addresses", "items": { "type": "string", "format": "email" }, "example": [ "jsmith@example.com" ] }, "bcc": { "type": "array", "description": "BCC email addresses", "items": { "type": "string", "format": "email" }, "example": [ "jsmith@example.com" ] } }, "required": [ "to" ] }